EP1364625B1 - Méthode de fabrication d'un guide de perçage pour implant dentaire - Google Patents

Méthode de fabrication d'un guide de perçage pour implant dentaire Download PDF

Info

Publication number
EP1364625B1
EP1364625B1 EP03017296A EP03017296A EP1364625B1 EP 1364625 B1 EP1364625 B1 EP 1364625B1 EP 03017296 A EP03017296 A EP 03017296A EP 03017296 A EP03017296 A EP 03017296A EP 1364625 B1 EP1364625 B1 EP 1364625B1
Authority
EP
European Patent Office
Prior art keywords
drill
implant
jawbone
model
drill guide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03017296A
Other languages
German (de)
English (en)
Other versions
EP1364625A1 (fr
Inventor
Michel Poirier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Technique dUsinage Sinlab Inc
Original Assignee
Technique dUsinage Sinlab Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4173254&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1364625(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Technique dUsinage Sinlab Inc filed Critical Technique dUsinage Sinlab Inc
Publication of EP1364625A1 publication Critical patent/EP1364625A1/fr
Application granted granted Critical
Publication of EP1364625B1 publication Critical patent/EP1364625B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/08—Machine parts specially adapted for dentistry
    • A61C1/082—Positioning or guiding, e.g. of drills
    • A61C1/084—Positioning or guiding, e.g. of drills of implanting tools
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/0003—Making bridge-work, inlays, implants or the like
    • A61C13/0004—Computer-assisted sizing or machining of dental prostheses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0089—Implanting tools or instruments
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H20/00—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance
    • G16H20/40—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/36—Image-producing devices or illumination devices not otherwise provided for
    • A61B2090/363—Use of fiducial points

Definitions

  • the present invention relates to a method of manufacturing a dental implant drill guide.
  • the oral surgeon typically has difficulty deciding on a drill axis for the implants since the ideal position for the implants should be decided with knowledge of the jawbone structure into which the implant is to be inserted, knowledge of the position within the jawbone structure of the nerve tissue, the gum surface and the required position and dimensions of the false teeth or dentures to be supported by the dental implant.
  • the dentist or dental surgeon simply makes a best guess in light of his knowledge of the patient.
  • the imperfections may be lack of ideal support, unfavorable angulation of an implant causing a weakness in the implant which may cause failure over time, or a visually perceptible defect in the appearance of the prosthesis.
  • FR-A-2 687 947 discloses a method of manufacturing a dental implant drill guide wherein a jawbone and tissue structure is imaged with reference to a gum surface to produce a two-dimensional computer graphics model. According to this reference, there is used a model to drill in the template body the holes that will receive pre-fabricated drill guide sockets. The sockets are manually mounted to the template body. Similar prior art is described in e.g. DE-A-195 10 294 and DE-A-43 28 490.
  • the present invention to provides a method which provides better accuracy and faster results than conventional methods.
  • the present invention also provides a dental implant drill guide which is precise and easy to use such that drilling of the dental implant holes does not require expert skill and knowledge beyond the skill of basic dental surgery. It is furthermore an object of the present invention to provide tools which will reduce the number of visits a patient needs to make to the dental surgeon in order to have dental implants and a dental implant superstructure inserted.
  • the patient is typically edentured, namely, the patient has had all teeth pulled from the jawbone, and the jawbone has been given time to heal since the teeth were pulled. If the patient decides to proceed with dental implants and the placement of a superstructure for solidly securing dentures over the gum, a period of about 12 months is provided for from the time of pulling any remaining teeth from the jawbone before proceeding with the operation of inserting implants into the jawbone.
  • a medical image of the jawbone and tissue structure is obtained by using x-ray imaging, MRI or possibly nuclear imaging techniques to produce a three-dimensional computer graphics model which has a reference to the gum surface or some other fixed reference with respect to the patient's jawbone.
  • a radiographic scanner guide is used which is molded to conform to the shape of the patient's gums and which includes radio-opaque spheres whose positions with respect to the gum surface is known.
  • the primary advantage of the invention is that the oral surgeon may select the optimum position for dental implants using the three-dimensional computer graphics model of the jawbone and tissue structure. Selection of the drill hole positions using the computer graphics model is transferred to a CNC device for the purposes of providing fixed drill guide sockets in the template body for each one of the drill hole positions or position selected using the computer graphics model. While the model is three-dimensional, it may be convenient for the purposes of selecting the drill hole axis to use a two-dimensional representation of the jawbone and tissue structure, the two-dimensional view being displayed with a user controlled slice angle.
  • the dental surgeon will select the position for each implant drill hole, not only to position the implant in the optimum location within the jawbone, but also to result in a position of support which is suitable for supporting the dentures.
  • the patient's dentures in the proper spatial relationship with respect to the jawbone and tissue structure. This requires imaging the patient's dentures or teeth, and possibly gum structure, in addition to the jawbone and tissue structure, in such a way that all images are referenced with respect to one another to be integrated into the same three-dimensional computer graphics model.
  • the drill template body is preferably molded on a physical model of the gum surface into which model the CNC device has previously drilled the desired implant drill holes.
  • the drill holes in the physical model are used to build a mold for the drill guide sockets. This prevents the need to use the CNC device to produce fine details except for the precision drilling of the drill holes.
  • Imaging of the dentures or teeth to be placed over the gum surface and the imaging of the gum surface can be carried out by using laser camera imaging techniques known in the art. These images are preferably obtained using a physical model of the patient's gum surface, and the physical model is imaged in such a way that the images can be referenced accurately to the jawbone and tissue structure images.
  • the actual dental implant position data is obtained preferably by taking an imprint using transfers connected to the implants.
  • the imprint is taken using the same drill guide according to the invention with the sockets of the drill guide being large enough to receive the transfers and surrounding imprint material.
  • the positions and orientations of the transfers are physically measured along with a reference to the drill guide which will permit the relative positions of the implants to be known with a reference to a standard frame of reference. Using the standard frame of reference, it is possible to generate a computer graphics model of the gum surface, dentures or teeth and dental implants which allows the dental surgeon or technician to select the best shape for the overlying bridge of the superstructure.
  • the ideal form of the superstructure can be automatically designed using the computer model taking into consideration the form of the laser camera imaged teeth and by subtracting a thickness of porcelain which the technician requires to recreate the shape of the imaged teeth.
  • the shape of the superstructure can be automatically determined by taking into account the external shape of the prosthesis and by circulating the superstructure inside the prosthesis, making sure that the necessary thickness of prosthesis material (e.g. acrylic) will be available all around in order to provide a adequately strong prosthesis.
  • the entire superstructure is cut using a CNC milling machine programmed to cut according to the shape data specified using the computer model.
  • the shape data is used to specify a 3D wax model prepared using stereolithographic techniques so that the superstructure can then be cast and then the abutments precision milled with a CNC milling machine.
  • the casting metal may be titanium.
  • a CNC drilling machine could be equipped with a precision drill bit and used to provide a model with precision positioned implant abutment cavities.
  • the shape of the superstructure can then be "crafted" by manually preparing the cavities for the rest of the superstructure in the model. Such crafting can be guided by the computer model.
  • the superstructure can then be cast in the model and finished, with the abutments in precise position.
  • an articulator 20 as is known in the art is set up to support a lower physical model 21 and an upper physical model 22 of a patient's mouth with lower and upper dentures 23 and 24 supported by the physical model with the teeth of the dentures in proper alignment.
  • the articulator is adjusted using the adjustment means 25 and 26 as is known in the art.
  • the dentures 23 and 24 are removed and a scanner guide 27 is made by hand to fit exactly the space occupied by the upper and lower denture.
  • Radio-opaque reference spheres 28 having a known diameter are bonded to the guide 27 with one sphere on each side at the rear and one in the front. In the illustration in the preferred embodiment, the spheres are shown near the lower jaw surface since it is the lower jaw that is to be imaged. The spheres could likewise be placed near the upper jaw surface as the case may be.
  • the separated scanner guide body 27 is illustrated in Figure 3.
  • the particular advantage of the scanner guide 27 according to the present invention is that during radiographic scanning of the patient's jaw, the patient may comfortably hold the scanner guide 27 in place by closing down on the same.
  • the lower jaw could move during imaging and must be secured by means such as the scanner guide 27 .
  • the patient's head is held in place during radiographic scanning using a suitable brace as is known in the art.
  • the result of the radiographic scanning is to obtain a three-dimensional computer graphics model 29 of the patient's lower jaw. Images of the reference spheres 28 appear as 33 and provide a reference to a coordinate axes 32 .
  • the dental surgeon is capable of viewing with the model 29 the nerve 37 which extends from the base of the jaw until it exits the jawbone at each side of the chin.
  • a drill axis 31 for each proposed drill hole 34 is selected on the computer model. The end point of the drill hole 36 is also selected.
  • a first angle ⁇ may define an angle of the drill axis 31 with respect to the x-z plane and a second angular parameter ⁇ may define the angle between the drill axis 31 in the z-y plane.
  • selection of the drill axes 31 for the drill holes 34 is done with knowledge of the relative position of the gum surface and the relative position of the dentures or teeth.
  • the 3-D computer model 29 is built up using the radiographic 3-D imaging data as well as referenced gum surface image data and referenced denture image data.
  • Figure 6 there is shown a panoramic slice view of the 3-D model 29 showing the gum surface 44 and dentures 43 superposed the cortical bone structure 41 and the marrow 42 .
  • the CNC drill 52 has a drill bit 53 which is capable of moving and drilling along a first vertical direction 54 .
  • the physical model 21 is mounted in such a way that it is able to turn about two directions 55 and 56 on a platform which is able to move in directions 57 and 60 .
  • the CNC drill 52 is capable of moving about five axes.
  • the scanner guide may be placed on top of the physical model 21 and a coordinates measuring machine (CMM) connected to CNC drill 52 is used to accurately locate the position of each one of the position reference spheres and reference these to the CNC drill's reference frame.
  • CCMM coordinates measuring machine
  • the CNC drill 52 is then programmed to convert the hole position and orientation data as referenced to the frame of reference of the computer model to the reference frame of the CNC drill so that the drill holes may be prepared in the physical model 21.
  • drill holes 58 are cut into the physical model 21 which is mounted on a base 59 .
  • the drill hole axes 31 as shown are in different positions and orientations.
  • rods 62 are inserted into the holes 58 .
  • the socket forming mold parts 63 are placed over the rods 62 and a surrounding mold structure (not shown) is placed around the physical model 21 to allow for the molded guide body 61 to be formed. Since the holes 58 are of different heights, the socket forming mold parts 63 are adjusted in size such that the distance between the circular flange edge and the end of the rods 102 is a constant. In this way, the circular flange edge 64 of the drill guide sockets is at a fixed distance with respect to the desired end point of the drill hole.
  • the finished molded drill guide body 61 has a plurality of drill guide tubes 66 inserted into the drill guide sockets 68 , and three holes 67 are additionally provided for transitionally securing the drill guide 61 to the patient's jawbone during surgery.
  • the drill guide tubes 66 may be removed and reinserted into the drill guide sockets 68 in order to change the internal diameter of the drill guide tubes as is required during surgery since the implant drill hole is started with a very small diameter drill bit and subsequently larger drill bits are used until the full size implant drill hole is obtained.
  • the drill used in surgery is provided with a collar 69 for abutting against the upper surface of the guide tube 66 in such a way that the distance between the bottom of the collar 69 and the end of the drill bit 71 is fixed as required.
  • the collar 69 is integral with the drill bit 71 .
  • the oral surgeon prepares the implant holes using the drill guide 61 by removing circular portions of the gum (gingival taps) at the implant sites.
  • a procedure known as "flap surgery” is carried out in which a piece of the gum covering the jawbone where the implant hole is to be drilled is cut and peeled back so that the oral surgeon has clear access to the jawbone surface.
  • the surgeon has the option of doing flap surgery if required or circumferential surgery as needed.
  • a modification of the surgical guide should be done, i.e. the guide should be removable as needed for flap surgery.
  • the use of transitional implants is needed to seat the guide after the flap is done. If the circular approach is chosen, there is no need to remove the guide during surgery, and by avoiding flap surgery, post operation healing time should be reduced.
  • the oral surgeon screws in an implant 72 into the hole made using drill guide 61 .
  • This can be done with the drill guide 61 remaining in place, the implants being inserted through the sockets 68 .
  • the upper surface of the implant 72 is approximately flush with the upper surface of the cortical exterior 41 of the jawbone.
  • the implant 72 has a hollow threaded core. Since the implant 72 has been inserted into the jawbone tissue 42 by hand, its exact position may not be perfectly defined by the drill hole formed using the drill guide.
  • a transfer 73 is placed over the implant 72 and a central screw 76 is used to fasten the transfer 73 to the implant 72 .
  • An imprint material 74 is injected in the space between the drill guide cavity 68 and the transfer 73 .
  • the imprint material hardens after a short period of time and the oral surgeon or dentist removes the screws 76 which allows the drill guide 61 to be removed with the transfers 73 secured in place with a precise correspondence to the actual positions of the implants 72 in the patient's jawbone.
  • the transfers securely lodged within the drill guide are used as a physical recording of the implant positions.
  • the implants are then capped with screws and the patient is typically given a period of a few months to recover from the insertion of the implants. During this time, the superstructure to be attached to the implants can be prepared.
  • the method for machining the superstructure requires measuring the actual implant position with reference to the gum surface. This is done by securing implant analogs (replicas of the implants) to each transfer. Then, with a special moldable stone material used in the art for producing oral cavity replicas, the analogs are embedded in the moldable stone material until it sets. After unscrewing all of the transfers from the analogs, a duplicate of the patient's mouth and positions of the implants is obtained. Extensions of the implants which are precisely machined to fit the analogs are screwed back into each analog and CMM measurements are made of the extensions.
  • implant analogs replicas of the implants
  • targets are used because the implant analog is typically too small for the CMM sensor and the target gives the technician additional surface to measure the top of the target and the sides.
  • the position of each implant is then calculated knowing the position of each target, the targets being of precise known size and shape. It is noted that by changing the occluded (top) surface of the analogs, it is possible to measure the position of the implants by using the CMM directly on the analogs without using the said targets. It is also noted that the same measurement could be calculated by directly scanning the position of the analogs with the said laser scanning camera.
  • a fixed reference to the patient's gum surface/jawbone As can be appreciated, this can be achieved in many different ways.
  • Known reference points may be provided on the drill guide and these can be measured when the drill guide is attached to the analogs on the stone physical model using the CMM apparatus. If the scanner guide is able to be fit securely over the gum surface of the physical model in which the implant analogs are embedded, the three spheres of the scanner guide can be measured before the targets are screwed in place.
  • the implant positions could be measured by attaching measurement targets directly to each transfer while measuring additionally reference points on the drill guide. This, however, poses the problem of solidly securing and mounting the drill guide to the CMM table.
  • the result of the CMM measurement starting with the transfers embedded in the drill guide is to obtain actual implant position data with a reference to the gum surface.
  • a 3-D computer model of the gum surface implant heads and teeth (overdentures) is then generated using the referenced gum surface image 38 and the referenced teeth image 39 . Also, the original drill hole position data is entered into the 3-D computer model in order to monitor the shifts between the desired and the actual implant positions. This also permits the oral surgeon to confirm whether the actual implant positions are different in a way which could potentially create problems. It also serves to confirm that the measured actual implant positions are accurate.
  • the 3-D computer model can be used to show sectional views transverse to the denture and upper jaw structure to illustrate the actual position of the implant, gum surface and teeth structure.
  • the implant head 49 will receive a superstructure consisting of an abutment foot 47 extending down to the top of the implant and having an upper bridge-like structure 48 extending inside the lower portion 44 of the denture structure and even possibly into the upper portion 43 of the denture structure.
  • the bridge structure 48 is designed to be located above the gum surface 46 and within the denture structure.
  • the bridge structure 48 may be necessary to shape the bridge structure 48 such that it passes close to either an inner or outer side wall of the denture structure 43 , 44 .
  • the denture technician is capable of viewing in the computer model how the bridge structure and superstructure is best constructed.
  • the shape data is passed on to a precision forming device for shaping the superstructure.
  • a CNC milling machine similar to the CNC drill device illustrated in Figure 9 is used.
  • the result is a superstructure as illustrated in Figure 17 which may be fastened directly to the dental implants.
  • the superstructure illustrated in Figure 17 is of the type which receives dentures by snap-fit as is illustrated in Figure 18.
  • the superstructure will be prepared from a solid piece of commercially pure titanium or any biocompatible material such as porcelain, preventing corrosion between implants and superstructure.
  • stereolithography is used to create a 3D superstructure in wax.
  • the wax superstructure can be used according to known techniques to obtain a cast titanium or titanium alloy superstructure body of the same shape. Precision holes and seats for the implants are then machined in the superstructure body using a 5-axis milling machine.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dentistry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Surgery (AREA)
  • Urology & Nephrology (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Primary Health Care (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Dental Prosthetics (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Claims (6)

  1. Procédé de fabrication d'un guide de perçage pour implant dentaire, comprenant les étapes consistant à :
    a) visualiser une structure de mâchoire et de tissu avec une référence à une surface de gencive (44) pour produire un modèle (29) graphique tridimensionnel par ordinateur ;
    b) sélectionner au moins une position de trou de perçage pour implant pour au moins un implant dentaire (72) en utilisant ledit modèle (29), ladite position étant spécifiée en trois dimensions, incluant un point de terminaison et d'orientation du trou, et étant référencée par rapport à la référence de ladite surface de gencive ;
    c) saisir au moins un jeu de coordonnées de position de trou de perçage pour implant dans un dispositif de fabrication de précision contrôlé par ordinateur (52) ;
    d) fournir un corps de gabarit de perçage (61) ayant une première surface adaptée pour recouvrir une surface de gencive (44) de la mâchoire dans une position prédéterminée par rapport à celle-ci ;
    e) utiliser ledit dispositif de fabrication de précision (52) pour fournir un manchon de guidage de perçage à orientation fixe (68) dans ledit corps de gabarit (61) pour chacune desdites au moins une position de trou de perçage saisie à l'étape c) avec une position et une orientation correspondant.
  2. Procédé selon la revendication 1, comprenant en outre la visualisation d'une prothèse dentaire (43) et incluant une image de ladite prothèse dentaire (43) dans ledit modèle (29) de sorte qu'une position de ladite prothèse (43) par rapport à ladite mâchoire peut être vue, au moyen duquel ladite au moins une position de trou de perçage pour implant peut être choisie en prenant en compte une position de ladite prothèse dentaire (43) par rapport à ladite structure de mâchoire et de tissu.
  3. Procédé selon la revendication 1 ou 2, dans lequel ledit manchon de guidage de perçage (68) reçoit des tubes de guidage de perçage (66) ayant un diamètre interne variable.
  4. Procédé selon les revendication 1, 2 ou 3, dans lequel ladite étape e) comprend le perçage desdits trous de perçage pour implant (58) dans un modèle physique (21) en utilisant un dispositif de perçage CNC (52), en insérant une partie de moule de manchon de guidage de perçage (63) dans ledit trou du modèle physique (58) fournissant une structure de moule autour dudit modèle physique (21) et en moulant ledit corps de modèle de perçage (61) devant être formé avec ledit manchon de guidage de perçage à orientation fixe (68) dans ledit corps (61).
  5. Procédé selon l'une quelconque des revendications 1 à 4, dans lequel ladite étape a) comprend la préparation d'un guide de référence de scanner (27) et la mise en oeuvre de visualisation radiographique de ladite structure de mâchoire et de tissu avec ledit guide de référence de scanner (27) fixé par rapport à ladite surface de gencive (44), et la conversion de ladite visualisation radiographique en des données pour produire ledit modèle (29) graphique tridimensionnel par ordinateur.
  6. Procédé selon l'une quelconque des revendications 1 à 5, dans lequel l'étape b) comprend la sélection d'au moins deux positions de trou de perçage pour implant pour au moins deux implants dentaires (72) en utilisant ledit modèle (29), l'étape c) comprend la saisie d'au moins deux jeux de coordonnées de position de trou de perçage d'implant, et l'étape e) comprend l'utilisation dudit dispositif de fabrication de précision (52) pour fournir un manchon de guidage de perçage à orientation fixe (68) dans ledit corps de gabarit (61) pour chacune desdites au moins deux positions de trou de perçage.
EP03017296A 1997-12-18 1997-12-18 Méthode de fabrication d'un guide de perçage pour implant dentaire Expired - Lifetime EP1364625B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/CA1997/000984 WO1999032045A1 (fr) 1997-12-18 1997-12-18 Realisation d'un guide de percage pour implant dentaire et d'une superstructure d'implant dentaire
EP97951028A EP1043960B1 (fr) 1997-12-18 1997-12-18 Methode de realisation d'une superstructure d'implant dentaire

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP97951028A Division EP1043960B1 (fr) 1997-12-18 1997-12-18 Methode de realisation d'une superstructure d'implant dentaire

Publications (2)

Publication Number Publication Date
EP1364625A1 EP1364625A1 (fr) 2003-11-26
EP1364625B1 true EP1364625B1 (fr) 2007-05-09

Family

ID=4173254

Family Applications (2)

Application Number Title Priority Date Filing Date
EP97951028A Expired - Lifetime EP1043960B1 (fr) 1997-12-18 1997-12-18 Methode de realisation d'une superstructure d'implant dentaire
EP03017296A Expired - Lifetime EP1364625B1 (fr) 1997-12-18 1997-12-18 Méthode de fabrication d'un guide de perçage pour implant dentaire

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP97951028A Expired - Lifetime EP1043960B1 (fr) 1997-12-18 1997-12-18 Methode de realisation d'une superstructure d'implant dentaire

Country Status (6)

Country Link
EP (2) EP1043960B1 (fr)
AU (1) AU5472498A (fr)
CA (1) CA2314866C (fr)
DE (2) DE69724669T2 (fr)
ES (2) ES2287389T3 (fr)
WO (1) WO1999032045A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011004222U1 (de) 2011-03-21 2012-06-25 Bego Implant Systems Gmbh & Co. Kg Bohrführungshülse für eine Zahnimplantat-Bohreinheit
US9839497B2 (en) 2012-09-12 2017-12-12 Nobel Biocare Services Ag Surgical template
US9877812B2 (en) 2012-09-12 2018-01-30 Nobel Biocare Services Ag Virtual splint
US9931177B2 (en) 2012-09-12 2018-04-03 Nobel Biocare Services Ag Digital splint

Families Citing this family (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6814575B2 (en) * 1997-02-26 2004-11-09 Technique D'usinage Sinlab Inc. Manufacturing a dental implant drill guide and a dental implant superstructure
US8545569B2 (en) 2001-05-25 2013-10-01 Conformis, Inc. Patient selectable knee arthroplasty devices
US9603711B2 (en) 2001-05-25 2017-03-28 Conformis, Inc. Patient-adapted and improved articular implants, designs and related guide tools
DE19952962B4 (de) * 1999-11-03 2004-07-01 Sirona Dental Systems Gmbh Verfahren zur Herstellung einer Bohrhilfe für ein Zahnimplantat
FR2808669B1 (fr) * 2000-05-11 2003-01-24 Louis Nahmani Procede, systeme et guide de reperage pour pose d'implant dentaire
DE10029256A1 (de) * 2000-06-14 2000-11-30 Stefan Wolz Verfahren zur Herstellung einer Bohrschablone zum Implantieren von künstlichen Zähnen
SE522958C2 (sv) 2000-12-29 2004-03-16 Nobel Biocare Ab Förfarande, arrangemang (anordning) och program vid eller för protetisk installation
FR2825614B1 (fr) * 2001-06-11 2004-04-02 Vincent Bennani Methode d'elaboration d'une armature montee sur implants adaptee pour supporter une prothese dentaire
US6671539B2 (en) † 2001-10-03 2003-12-30 Board Of Regents University Of Texas System Method and apparatus for fabricating orthognathic surgical splints
SE520765C2 (sv) 2001-12-28 2003-08-19 Nobel Biocare Ab Anordning och arrangemang för att medelst mall ta upp hål till implantat i ben, företrädesvis käkben
JP4499422B2 (ja) 2002-01-16 2010-07-07 アイ−デント イメージング， インコーポレイテッド 口腔インプラントテンプレート
JP3820390B2 (ja) * 2002-08-26 2006-09-13 株式会社アイキャット 人工歯根埋入位置算出方法、人工歯根埋入位置算出装置、コンピュータプログラム及び記録媒体
FR2850268B1 (fr) 2003-01-28 2005-04-08 Louis Nahmani Systeme de guidage dentaire et implantaire par controle en imagerie d'emission et detection d'ondes specifiques
DE10309992A1 (de) * 2003-02-28 2004-09-16 Med3D Gmbh Verfahren und Vorrichtung zur Kontrolle der Position von Bohrhülsen
DE10335272A1 (de) * 2003-08-01 2005-03-03 Bego Semados Gmbh Anordnung zur Führung eines Dentalimplantatbohrers, Bohrschablone sowie Bohrschablonenaufnahmeimplantat für die Anordnung und Verfahren zur Herstellung dieser Bohrschablone
SE526223C2 (sv) * 2003-12-10 2005-08-02 Nobel Biocare Ab System och anordning vid framställning och isättning av tandbrouppbyggnad
USRE47368E1 (en) 2003-12-30 2019-04-30 Greenberg Surgical Technologies, Llc Modular template for drilling holes and method of making same
US9050665B2 (en) 2003-12-30 2015-06-09 Greenberg Surgical Technologies, Llc Modular template for drilling holes and method of making same
GB0501464D0 (en) * 2005-01-25 2005-03-02 Leuven K U Res & Dev Procedure for design and production of implant-based frameworks for complex dental prostheses
JP5336177B2 (ja) * 2005-05-20 2013-11-06 グリーンバーグ サージカル テクノロジーズ， リミテッド ライアビリティ カンパニー 穴あけ用モジュールテンプレート及びその製作方法
EP1726265A1 (fr) * 2005-05-27 2006-11-29 Université Catholique de Louvain Méthode et équipement pour la simulation d'opération de chirurgie maxillo faciale et transfert de ce planning en salle d'opération
WO2007005490A2 (fr) 2005-06-30 2007-01-11 Implant Innovations, Inc. Procede de fabrication de composants d'implants dentaires
ITTO20050542A1 (it) * 2005-08-02 2007-02-03 Alma Mater Studiorum Uni Di Bologna Metodo e stazione di lavoro per realizzare una mascherina guida per la inserzione di un impianto osteointegrato nei mascellari
US11219511B2 (en) 2005-10-24 2022-01-11 Biomet 3I, Llc Methods for placing an implant analog in a physical model of the patient's mouth
US8257083B2 (en) 2005-10-24 2012-09-04 Biomet 3I, Llc Methods for placing an implant analog in a physical model of the patient's mouth
WO2007092841A2 (fr) 2006-02-06 2007-08-16 Conformis, Inc. Dispositifs d'arthroplastie articulaire et outils chirurgicaux sélectionnables par le patient
US8366442B2 (en) * 2006-02-15 2013-02-05 Bankruptcy Estate Of Voxelogix Corporation Dental apparatus for radiographic and non-radiographic imaging
BRPI0711288B8 (pt) 2006-05-04 2021-06-22 Nobel Biocare Services Ag dispositivo para fixar um implante dentário ao tecido ósseo de um paciente.
DE102006038744B4 (de) * 2006-08-17 2019-05-02 Sicat Gmbh & Co. Kg Aufbissvorrichtung, Aufbissplatte und Verfahren zur Positionierung eines Patienten bei einer Aufnahme mit einer Röntgenaufnahmeeinrichtung
CN101578076B (zh) 2007-01-10 2013-10-23 诺贝尔生物服务公司 用于牙设计和制备的方法和系统
CA2687116C (fr) 2007-05-14 2015-05-26 Queen's University At Kingston Outil de guidage chirurgical adapte au patient et procede d'utilisation
US9351744B2 (en) 2007-05-14 2016-05-31 Queen's University At Kingston Patient-specific surgical guidance tool and method of use
US8206153B2 (en) 2007-05-18 2012-06-26 Biomet 3I, Inc. Method for selecting implant components
BRPI0815703A2 (pt) * 2007-08-24 2015-02-10 2Ingis S A Processo de fabricação de uma prótese dentária e de um guia cirúrgico dentário.
WO2011106430A1 (fr) 2010-02-25 2011-09-01 Depuy Products, Inc Blocs de coupe osseuse spécifiques à un patient personnalisés
ES2800031T3 (es) 2007-09-30 2020-12-23 Depuy Products Inc Método para generar una instrumentación quirúrgica ortopédica específica para un paciente personalizada
WO2011106399A1 (fr) 2010-02-25 2011-09-01 Depuy Products, Inc. Blocs de coupe osseuse spécifiques à un patient personnalisés
US9138239B2 (en) 2007-09-30 2015-09-22 DePuy Synthes Products, Inc. Customized patient-specific tibial cutting blocks
US9173662B2 (en) 2007-09-30 2015-11-03 DePuy Synthes Products, Inc. Customized patient-specific tibial cutting blocks
US8357111B2 (en) 2007-09-30 2013-01-22 Depuy Products, Inc. Method and system for designing patient-specific orthopaedic surgical instruments
DE102007052389A1 (de) * 2007-10-31 2009-05-07 Sicat Gmbh & Co. Kg Verfahren zur Herstellung einer Behandlungsschablone
US8777612B2 (en) 2007-11-16 2014-07-15 Biomet 3I, Llc Components for use with a surgical guide for dental implant placement
EP2106768A1 (fr) * 2008-03-31 2009-10-07 Fundacja Uniwersytetu Medycznego Procédé de stabilisation d'une denture complète dans la mâchoire inférieure et système de retenue de barre pour appliquer ce procédé
KR101485882B1 (ko) 2008-04-15 2015-01-26 바이오메트 쓰리아이 엘엘씨 정확한 뼈와 연조직 디지털 치아 모델의 형성 방법
EP2276416B1 (fr) 2008-04-16 2015-12-16 Biomet 3i, LLC Procédé pour la visualisation pré-opératoire d'instruments utilisés avec un guide chirurgical pour le placement d'un implant dentaire
KR100977911B1 (ko) * 2008-05-30 2010-08-24 이태경 이종 영상이미지를 이용한 임플란트 식립 모의장치 및모의시술방법
TW201000078A (en) * 2008-06-26 2010-01-01 Pou Yu Biotechnology Co Ltd Manufacturing method for the guiding board of dental implant surgical operation
DE102008063695A1 (de) * 2008-12-19 2010-06-24 Horst Bendrich Bohrmaschine zur Fertigung von Schablonen für die Dentalmedizin
DE102009010699C5 (de) 2009-02-27 2020-11-12 Marcus Abboud Bohrschablone zum Präparieren eines Patienten-Kieferknochens für ein medizinisches Zahn-Implantat
TW201034634A (en) * 2009-03-19 2010-10-01 Pou Yu Biotechnology Co Ltd Production method of dental implant surgical guide
EP2254068B1 (fr) 2009-05-18 2020-08-19 Nobel Biocare Services AG Procédé et système fournissant une correspondance de données améliorée pour une planification virtuelle
TW201108995A (en) * 2009-09-10 2011-03-16 nai-chang Yu Positioning auxiliary apparatus for dental implantation
JP5443927B2 (ja) * 2009-09-30 2014-03-19 国立大学法人 東京医科歯科大学 咀嚼力判定用カラースケールの作成方法
CA2780826C (fr) 2009-11-17 2018-05-29 Queen's University At Kingston Guide de positionnement d'une cupule acetabulaire specifique d'un patient
US10149722B2 (en) 2010-02-25 2018-12-11 DePuy Synthes Products, Inc. Method of fabricating customized patient-specific bone cutting blocks
EP2543331A4 (fr) * 2010-03-05 2014-10-22 Internac Dental 2007 Sl Prothèse pour implants dentaires
DE102010031018A1 (de) 2010-07-06 2012-01-12 Sirona Dental Systems Gmbh Verfahren und Spannvorrichtung zur Herstellung einer zahnmedizinischen Bohrschablone
EP2620122A4 (fr) 2010-09-21 2014-05-07 Implantdent Co Ltd Outil de fabrication de guide chirurgical et procédé de fabrication de guide chirurgical
TWI394560B (zh) * 2010-10-20 2013-05-01 Metal Ind Res & Dev Ct 植牙手術導板及其製作方法
SE535361C2 (sv) 2010-11-10 2012-07-10 Biomain Ab Dentalbryggor och superstrukturer, samt metoder för att tillverka dessa
EP2462893B8 (fr) 2010-12-07 2014-12-10 Biomet 3i, LLC Élément universel de référence pour balayage, à utiliser sur un implant dentaire et analogues d'implants dentaires
DE102011003561A1 (de) 2011-02-03 2012-08-09 Sirona Dental Systems Gmbh Abdruck, Bohrschablone und Verfahren zur Bereitstellung einer Lagebeziehung und zur Erstellung einer Bohrschablone
DE102011003557B9 (de) 2011-02-03 2012-09-06 Sirona Dental Systems Gmbh Bohrschablone für ein dentales Implantat, ein Verfahren zur Herstellung dieser Bohrschablone sowie eine Vorrichtung zur Überprüfung der Bohrschablone und deren Verwendung
DE102012102255B4 (de) * 2011-03-18 2013-07-25 ICC GmbH implant competence center Öhringen Behandlungsschablone
WO2012158769A1 (fr) 2011-05-16 2012-11-22 Biomet 3I, Llc Dent pilier provisoire combinant caractéristiques d'exploration et caractère provisoire
US8641721B2 (en) 2011-06-30 2014-02-04 DePuy Synthes Products, LLC Customized patient-specific orthopaedic pin guides
US9452032B2 (en) 2012-01-23 2016-09-27 Biomet 3I, Llc Soft tissue preservation temporary (shell) immediate-implant abutment with biological active surface
US9089382B2 (en) 2012-01-23 2015-07-28 Biomet 3I, Llc Method and apparatus for recording spatial gingival soft tissue relationship to implant placement within alveolar bone for immediate-implant placement
US9486226B2 (en) 2012-04-18 2016-11-08 Conformis, Inc. Tibial guides, tools, and techniques for resecting the tibial plateau
US9675471B2 (en) 2012-06-11 2017-06-13 Conformis, Inc. Devices, techniques and methods for assessing joint spacing, balancing soft tissues and obtaining desired kinematics for joint implant components
US20140080092A1 (en) 2012-09-14 2014-03-20 Biomet 3I, Llc Temporary dental prosthesis for use in developing final dental prosthesis
US8926328B2 (en) 2012-12-27 2015-01-06 Biomet 3I, Llc Jigs for placing dental implant analogs in models and methods of doing the same
US9668834B2 (en) 2013-12-20 2017-06-06 Biomet 3I, Llc Dental system for developing custom prostheses through scanning of coded members
US9700390B2 (en) 2014-08-22 2017-07-11 Biomet 3I, Llc Soft-tissue preservation arrangement and method
US10449018B2 (en) 2015-03-09 2019-10-22 Stephen J. Chu Gingival ovate pontic and methods of using the same
DE102016221426A1 (de) * 2016-10-31 2018-05-03 Sirona Dental Systems Gmbh Verfahren zur Planung einer dentalen Konstruktion
DE102018210259A1 (de) 2018-06-22 2019-12-24 Sirona Dental Systems Gmbh Verfahren zur Konstruktion einer Bohrschablone
US11051829B2 (en) 2018-06-26 2021-07-06 DePuy Synthes Products, Inc. Customized patient-specific orthopaedic surgical instrument
CN111231325B (zh) * 2020-01-17 2022-04-05 北京大学口腔医学院 一种牙列倒凹坚固固位牙体预备导板的设计制作方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5015183A (en) * 1989-08-07 1991-05-14 Fenick Thomas J Locating device and method of placing a tooth implant
FR2687947B1 (fr) * 1992-03-02 1994-05-27 Pierre Caillon Procede de localisation d'un point et d'un axe de forage optimaux dans un substrat heterogene et installation pour la mise en óoeuvre de ce procede.
US5320529A (en) * 1992-09-09 1994-06-14 Howard C. Weitzman Method and apparatus for locating an ideal site for a dental implant and for the precise surgical placement of that implant
JPH0824685B2 (ja) 1992-11-25 1996-03-13 株式会社江川 インプラント構造体の測定方法およびその測定装置
IT1270942B (it) 1993-05-14 1997-05-26 Antonio Cascione Dima radiografico-chirurgica orientabile per ipianti nelle ossa mascellari.
DE4328490A1 (de) * 1993-08-25 1995-03-02 Friedmann Leonid Verfahren und Vorrichtung zur Lagebestimmung und präoperativen Ausrichtung von enossalen Implantaten im Kieferknochen und zum Setzen der Bohrungen für die Implantate
US5527182A (en) * 1993-12-23 1996-06-18 Adt Advanced Dental Technologies, Ltd. Implant abutment systems, devices, and techniques
DE19510294A1 (de) * 1995-03-22 1996-10-02 Ralf Bannuscher Verfahren zur Herstellung einer Operationsschablone für eine implantologische Operation, Vorrichtung zur Herstellung einer Operationsschablone für eine implantologische Operation und Operationsschablone für eine implantologische Operation
IL118371A (en) * 1996-05-22 2000-06-29 Conley Roy Drill guide
DE19629708C2 (de) * 1996-07-24 1998-11-12 Stephan Dr Dr Bonorden Verfahren zur präoperativen Planung von Zahnimplantaten

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011004222U1 (de) 2011-03-21 2012-06-25 Bego Implant Systems Gmbh & Co. Kg Bohrführungshülse für eine Zahnimplantat-Bohreinheit
DE102012204462A1 (de) 2011-03-21 2012-09-27 Bego Implant Systems Gmbh & Co. Kg Bohrführungshülse für eine Zahnimplantat-Bohreinheit
US9839497B2 (en) 2012-09-12 2017-12-12 Nobel Biocare Services Ag Surgical template
US9877812B2 (en) 2012-09-12 2018-01-30 Nobel Biocare Services Ag Virtual splint
US9931177B2 (en) 2012-09-12 2018-04-03 Nobel Biocare Services Ag Digital splint

Also Published As

Publication number Publication date
WO1999032045A1 (fr) 1999-07-01
DE69724669T2 (de) 2004-07-08
DE69737726D1 (de) 2007-06-21
EP1043960B1 (fr) 2003-09-03
CA2314866A1 (fr) 1999-07-01
CA2314866C (fr) 2007-04-17
ES2206763T3 (es) 2004-05-16
DE69737726T2 (de) 2008-01-10
DE69724669D1 (de) 2003-10-09
EP1043960A1 (fr) 2000-10-18
EP1364625A1 (fr) 2003-11-26
AU5472498A (en) 1999-07-12
ES2287389T3 (es) 2007-12-16

Similar Documents

Publication Publication Date Title
EP1364625B1 (fr) Méthode de fabrication d'un guide de perçage pour implant dentaire
US5725376A (en) Methods for manufacturing a dental implant drill guide and a dental implant superstructure
US6382975B1 (en) Manufacturing a dental implant drill guide and a dental implant superstructure
CA2477951C (fr) Methode de fabrication preoperatoire de la superstructure d'un implant dentaire
US7866980B2 (en) Manufacturing of a dental implant superstructure
US11291533B2 (en) Methods, systems and accessories useful for procedures relating to dental implants
US8529255B2 (en) Dental prosthesis system
US20120308963A1 (en) Dental diagnosic and dental restoration methods, systems, apparatuses, and devices
JP2001523509A (ja) 外科用テンプレートアセンブリ及び孔を明け人工歯根を植える方法
US20050287492A1 (en) Device for determining dynamically the orientation of surgical stents on reference templates
CA2817236A1 (fr) Procede de production d'un analogue de laboratoire pour implants dentaires
CA2575964C (fr) Realisation d'un guide de percage pour implant dentaire et d'une superstructure d'implant dentaire
EP3750506B1 (fr) Prothèse dentaire et sa methode de fabrication
EP2335640B1 (fr) L'usage d'un dispositif de positionnement avec analogues et modèles dentaires
TWI632895B (zh) 用於牙科植入物之夾具及包含其之套組

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20030730

AC Divisional application: reference to earlier application

Ref document number: 1043960

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE ES FR GB IT LI SE

RIN1 Information on inventor provided before grant (corrected)

Inventor name: POIRIER, MICHEL

AKX Designation fees paid

Designated state(s): CH DE ES FR GB IT LI SE

17Q First examination report despatched

Effective date: 20040806

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AC Divisional application: reference to earlier application

Ref document number: 1043960

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE ES FR GB IT LI SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 69737726

Country of ref document: DE

Date of ref document: 20070621

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

ET Fr: translation filed
RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: TECHNIQUE D'USINAGE SINLAB INC.

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: TECHNIQUE D'USINAGE SINLAB INC.

Free format text: TECHNIQUE D'USINAGE SINLAB INC.#370 BOUL. DE LA SEIGNEURERIE OUEST, BUREAU 103#BLAINVILLE, QUEBEC J7C 5A1 (CA) -TRANSFER TO- TECHNIQUE D'USINAGE SINLAB INC.#836 DE LA MECANTINA#LACHENAIE, QUEBEC J6W 5H2 (CA)

Ref country code: CH

Ref legal event code: NV

Representative=s name: ISLER & PEDRAZZINI AG

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2287389

Country of ref document: ES

Kind code of ref document: T3

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAQ Examination of admissibility of opposition: information related to despatch of communication + time limit deleted

Free format text: ORIGINAL CODE: EPIDOSDOPE2

PLAZ Examination of admissibility of opposition: despatch of communication + time limit

Free format text: ORIGINAL CODE: EPIDOSNOPE2

26 Opposition filed

Opponent name: SICAT GMBH & CO. KG

Effective date: 20080130

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PLCK Communication despatched that opposition was rejected

Free format text: ORIGINAL CODE: EPIDOSNREJ1

APBM Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: SICAT GMBH & CO. KG

Effective date: 20080130

REG Reference to a national code

Ref country code: DE

Ref legal event code: R100

Ref document number: 69737726

Country of ref document: DE

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 20150123

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 19

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20161213

Year of fee payment: 20

Ref country code: CH

Payment date: 20161221

Year of fee payment: 20

Ref country code: GB

Payment date: 20161201

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20161222

Year of fee payment: 20

Ref country code: SE

Payment date: 20161201

Year of fee payment: 20

Ref country code: ES

Payment date: 20161213

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20161223

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 69737726

Country of ref document: DE

Representative=s name: KLUNKER IP PATENTANWAELTE PARTG MBB, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69737726

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20171217

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20171217

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20180508

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20171219